With 24,600 people, Zion is a city in Illinois. 15% of adults hold a bachelor's degree, below the 36% national rate. The median age is 32.3, younger than the US median of 38.9. Home values have risen by half since 2000, reaching $183,800. Density works out to 2,477 people per square mile. That trails the Illinois median by roughly 24%.
At a glance
Lower income
median household income $63,104, below the US median
US median: $82,259
Younger
median age 32.3
US median: 38.9
Less educated
15% hold a bachelor's degree
US average: 36%
More affordable
home values down 12%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Zion
What changed most since 1990
White share70.6% → 24.5%(−46.1 pts)US over the same years: −17.8 pts
Hispanic share5.8% → 43.7%(+38.0 pts)US over the same years: +9.9 pts
Adults with a bachelor's degree10.7% → 15.1%(+4.4 pts)US over the same years: +15.3 pts
Zion's population equals 3.4% of Lake County's. Its number of adults with a bachelor's degree or higher equals 1.0% of the county's. Its number of people who work from home equals 1.4% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)40.1%(530)
US avg: 26.4%
Gulf War (1990s)35.7%(472)
US avg: 24.3%
Vietnam era25.6%(339)
US avg: 33.1%
Korean War1%(13)
US avg: 4.5%
World War II0.8%(10)
US avg: 1%
Share of the 1,323 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Zion, decade by decade
Zion population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
19,775
$74,784
$162,725
10.7%
56.1
2000
22,866
$83,292
$209,672
15.7%
78.0
2010
24,413
$73,186
$243,982
15.1%
87.5
2020
24,655
$68,867
$166,898
15.5%
87.6
2024
24,600
$63,104
$183,800
15.1%
86.4
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
